Templet-cutter guide for machine-tools.



Patented Nov. 26, I901.

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TEMPLET CUTTER, GUIDE FDRMACHINE TBULS.

' (Application filed. July 8, .1901.)

3 Sheets-Sheet I.

(No Model.)

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G. SCHKUMMUDAU. TEMPLET CUTTER GUIDE FOR MACHINE TOOLS.

Patented Nov. 26, I90l.

(Application filed July 8, 1901.)

3 Sheets-Sheet 3.

(No Model.)

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UNITED STATES PATENT EEicE.

GUSTAV SCHKOMMODAU, OF NUREMBERG, GERMANY, ASSIGNOR TO THE FIRM OF RICHARD BRASS, OF NUREMBERG, GERMANY.

TEMPLET-CUTTER GUIDE FOR MACHINE-TOOLS.

SPECIFICATION forming part of Letters Patent No. 687,699, dated November 26, 1901.

Application filed July 9, 1901. Serial No. 67,500. (No model.)

To a whom it may concern.-

Be it known that I, GUSTAV SCHKOMMODAU, a subject of the King of Prussia, German Emperor, and a resident of Nuremberg, Bavaria, in the Empire of Germany, have invented certain new and useful Improvements in Templet-Outter Guides for Machine-Tools, of which the following is a specification.

The present invention relates to a templetcutter guide for lathes and other machinetools; and it consists of the details of construction hereinafter set forth, and par'ticu larly pointed out in the claims.

In order to render the present specification easily intelligible, reference is had to the accompanying drawings, in which similar characters of reference denote similar parts throughout the several views.

Figures 1 to 5 show one form of embodying the invention, Fig. 1 being a cross-section through a compound tool-slide, Fig. 2 a dotail sectional elevation of a modification, Fig. 3 a longitudinal section through the same tool-slide, Fig. 4 a central section through the part of the slide engaging the transportspindle, and Fig. 5 a plan view of the slide. Figs. 6 to 8 show another form of embodying the invention, Fig. 6 being a part crosssection through the tool-holding slide, Fig.

'7 a longitudinal section, and Fig. 8 a plan.

Figs. 9 to 12 show a further modification, Fig. 9 being a part cross-section through the compound slide, Fig. 10 a section of a detail, Fig. 11 a longitudinal section through the slide, and Fig. 12 a plan of the same.

Referring to Figs. 1 to 5, at the back of the lathe-bed b a flange or holder (1 is provided, to the upper part'of which the templet e is secured. This templet represents the form it is desired to impart (in profile) to the article being turned or otherwise shaped or planed. The main slide n slides, as usual, on the bed I), and the transverse slide or tool-holder m is guided transversely to the main slide n on the guide 0,slide n running on guides o. The main slidendoes not fit immediately onto the transport-spindle w, as is usual; but an intermediate sleeve w is provided and adapted to be moved by the said spindle, said sleeve being slidable but not rotatable in a housing to, which is formed on the slide a. The sleeve w is provided with a rack v in, which a pinion tengages, which is mounted in the housing 20' and is wider than the said rack 11, so that when the rack is in engagement with the lower part of the said pinion a second rack s, mounted on the transverse slide m, will be in engagement with its upper part, the two racks lying at right angles one to the other. To the slide it is further attached a weight 2, fast to the end of a cord 1, guided overa suitable roll, Fig. 3. This weight has a tendency to pull the pinion t along the rack o. The slide m is provided with the finger r, rigidly attached thereto and which is kept in engagement with the templet e by the action of the weight 2 on the pinion t, and consequently on the two racks o and s.

The device operates in. the following man ner: When the spindle a0 is turned, (auto matically or by hand,) it moves the whole of the compound slide on nalong the bed of the lathe, and by the action of the weight 2 the pinion will thus be turned by the rack 1;, so that it will operate the upper slide m to continually keep the finger 1 against the templet c, and thus the cutter h, which is mounted on the slide m in the usual manner, will be moved along, the article being turned in a line corresponding to the shape of the tem plet, and the article will be automatically turned to the profile of the templet.

In Fig. 2 instead of the screw-spindle a worm-spindle w is provided, which engages a worm-wheel u of the pinion 15, said wormwheel being rigidly connected to the said spindle, so that on turning the spindle the slide on will be moved by the pinion t.

In Figs. 6 to 8 the top of the sleeve 2; is provided with slanting teeth which engage corresponding teeth or racks 3 formed at the bottom of the slide m, the weight 2 in this case also acting on the slide n, and the slanting teeth of the two parts tending, under the influence of the said weight, to keep the finger of the slide m against the templet e, as will be readily understood from the foregoing description.

.In Figs. 9 to 11 the rack '11 is turned upwardly and engages a pinion 7, fast on a screw-spindle 8, which is mounted in the upper part of the slide 01 and with which an internally threaded nut 9, in engagement with the slide m, engages, so that when the spindle-pinion 7 is turned by the action of the rack 11 the slide m will also be kept with its finger 7' against the templet e. In Fig. 10 a Worm 10 and worm-Wheel are substituted for the pinion 7.

The automatic guide device may also be employed in connection With planingmachines and shaping-machines, and particularly for machines for cutting the profile of teeth. When the device is employed for shapingmachines, the shaping-tool is attached to the slide m instead of the cutter 7L and is rotated by any suitable mechanism.

I claim- 1. In a machine-tool having a compound tool-carrying slide the combination of a templet fixed at the rear of the slide, a finger on the upper member of the said slide, to contact with the said templet, a spindle to operate the slide along its bed, a sleeve on said spindle, fixed in the lower member of the slide and having a rack, and a rack attached to the upper member of the said slide, a pinion mounted in thelower member of the said slide and engaging both the said racks and a weight suspended from the lower member of the slide and adapted to pull the same against the action of the transport-spindle substantially as described.

2. In a machine-tool having a compound tool-carrying slide, the combination of a templet attached at the rear of the said slide, a finger on the upper member to contact with the said templet, a transport-spindle for the said slide, a sleeve on the said spindle having a rack, a rack on the upper member of the said slide and a pinion on the lower slide member to engage both the said racks, and means for exercising a pull on the lower slide member in a direction opposite to that of motion of the slide along its bed in the manner and for the purpose substantially as described.

In witness whereof I have hereunto set my hand in presence of two witnesses.

GUSTAV SCHKOMMODAU. 

